含铝炸药深水爆炸能量输出特性高精度数值模拟研究  

High-Resolution Numerical Simulation Study of the Energy Output Characteristics of Aluminized Explosives in Deep-Water Explosion

作　　者：王成[1] 杨长鑫 贾曦雨 杨同会 WANG Cheng;YANG Changxin;JIA Xiyu;YANG Tonghui(State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,China;School of Aerospace Engineering,Tsinghua University,Beijing 100084,China)

机构地区：[1]北京理工大学爆炸科学与技术重点实验室,北京100081 [2]清华大学航空航天学院,北京100084

出　　处：《北京理工大学学报》2024年第8期872-878,共7页Transactions of Beijing Institute of Technology

基　　金：国家自然科学基金专项项目(12141201);国家自然科学基金重点项目(U20A2071);国家自然科学基金青年基金资助项目(12202061)。

摘　　要：在深水条件下含铝炸药爆炸不同于理想炸药,高静水压力会影响铝粉参与二次燃烧反应的速率,进而影响能量的释放过程.采用3阶MUSCL有限体积方法结合含铝炸药Miller能量释放模型,研究CL-20基含铝炸药在100~3 000 m水深梯度范围下随水深变化的爆炸能量输出特性.结果表明:爆炸冲击波能会随着水深的增加而不断减小;当水深超过200 m后,CL-20基含铝炸药中铝粉二次反应时间超过气泡周期,在第一个脉动周期内铝粉反应释放能量不充分导致根据气泡周期公式得到的气泡能偏小,气泡能也随着水深增加而减小,爆炸总能量不为定值.The explosion of aluminized explosives in deep-water is different from that of ideal explosives.The high hydrostatic pressure will affect the reaction rate of aluminum powder’s secondary combustion and then af-fect the process of energy release.The explosion energy output characteristics of CL-20-based aluminized ex-plosives in the range of 100~3000 m water depth gradient were studied,using third-order MUSCL finite volume method combined with the Miller energy release model.The results show that the shock wave energy decreases with the increase of water depth;the secondary reaction time of aluminum powder in CL-20-based aluminized explosives exceeds that in the bubble period when the depth of water exceeds 200 m,the energy released from the reaction of aluminum powder in the first pulsating period is not enough,which leads to the fact that the bubble energy from the bubble cycle formula is smaller,the bubble energy decreases with the increase of water depth,and the total explosion energy is not constant.

关 键 词：含铝炸药 深水爆炸 能量输出 数值模拟 

分 类 号：O38[理学—流体力学]